Menara Networks Announces New Class of EDC Technology at OFC/NFOEC 2009

SAN DIEGO CA, March 23, 2009 — Menara Networks, an optical networking specialist and provider of the award winning “System-in-a-Module” OTN XFP and XENPAK pluggable transceivers, today announces a new class of clock and data recovery receivers that perform discrete-time analog signal processing at 12 Gbps. This new class of EDC was shown to effectively compensate for dispersion impairments on a record-setting 400Km link of uncompensated SMF-28 Fiber.

The announcement demonstrates a new class of silicon receivers, based on the company’s12-Gbps “MagicEye™” platform. It utilizes the principles of partial-response maximum likelihood equalization (PRML) and a discrete-time analog design that does not require an analog to digital converter (ADC) common to existing solutions. Using this receiver, Menara Networks experimentally demonstrated a total compensation for over 6,500 psec/nm of fiber chromatic dispersion at 12 Gbps NRZ operation; thus demonstrating its superior performance in terms of achievable dispersion compensation compared to existing EDC solutions. Its achievable reach (over 400km of uncompensated standard mode fiber) offers a viable solution for seamless 10G upgrade of existing 2.5G deployed optical long-haul networks.

“PRML has been used with great success to mitigate ISI impairments in high-density magnetic and optical storage systems. Its use to compensate for fiber dispersion is an industry’s first.” said Salam ElAhmadi, Menara’s Founder, CTO and VP of Advanced Technology. “It is a multi-approach solution that augments existing Maximum Likelihood Sequence Estimation (MLSE) approaches with effective signal equalization. Eliminating the multi Giga samples/sec ADC which severely reduces the quality of the received signal and limits the effectiveness of MLSE processing was key in achieving performance enhancement over other solutions. Menara’s MagicEye™ platform is the first commercial analog signal processing engine capable of multi-gigabits per second operations and can effectively address a number of applications outside optical communications”. “This announcement is a culmination of a number of industry firsts in the area of high speed precision analog circuit design” adds Matthias Bussmann, Menara’s VP of IC Design and Engineering. “Menara’s ultra-long reach EDC solution is the first successful Silicon implementation of an analog Viterbi processing engine, programmable equalizer and an algorithmic-driven clock recovery circuits operating at 12 Gbps, all monolithically integrated into a single Silicon die capable of operations within the size constraints of pluggable optical transceivers.”

More technical details will be presented at next’s week OFC / NFEC 2009 in San Diego CA on Wednesday, Mar 25, 2009, 10:00 AM -12:00 PM. Live demonstrations of the company MagicEye™ Receiver will be also be conducted daily in the Exhibit Hall of the same conference at Menara Networks Booth # 2319 in Exhibit Hall D between March 24 and March 26, 2009.

About Menara Networks

Menara Networks develops innovative products and solutions that greatly simplify today's layered optical transport networks. Leveraging the company's proprietary high speed ICs and its extensive expertise in optical networking and system design, Menara products provide optical networks with superior performance and improved service velocity while reducing network elements and overall network cost. Menara's MSA-compliant transceivers with integrated ITU-T G.709 OTN enable OEM customers to seamlessly and rapidly unlock the potential of their platforms by offering unique opportunities for expanded addressable markets and faster revenues. The Company is funded by Sigma Partners, Spark Capital, Concept Ventures, and Applied Materials venture capital arm. Menara is headquartered in Dallas, Texas. For more information, visit